As I was using Hindi in some of my post I saw wordpress didn’t render it.
The quickfix I applied was found here

if u want to show the devnagari script(Unicode-UTF8) in your wp blog , you have to edit your wp-config.php file located in your file manager.
Go to wp-content.php file & find this code (must be on the line 7 & 8)

define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

now you have to add “//” to both line of codes.(without “”)
after the changes it should be look like this

//define('DB_CHARSET', 'utf8');
//define('DB_COLLATE', '');